Are there any performance differences in lead-free solder and normal solder?

Well I might start making some BEAM bots but I am having some trouble deciding what solder i need to use for good safety and good performance. Thanks for you time. -redcorvette1

Question by redcorvette1 10 years ago  |  last reply 7 years ago


Who decided to fix the website

Who decided to revamp how messages and comments work? THAT wasn't broken....what genius decided to fix something that wasn't broken? Hey, how about fixing the part where I see a message from 1 year ago, followed by 2 months followed by 1 week, followed by 2 years followed by 3 days?

Topic by SuperTech-IT 2 years ago  |  last reply 2 years ago


Who Decides If An Answer Will Be Published?

Having explained as clearly as I could about a technical problem that I have, and waiting in eager anticipation for a possible solution;- it wasn't published! I am much vexed. I dotted and crossed so?..; what's the problem?

Question by Z.. 9 years ago  |  last reply 9 years ago


Can't Decide Which Zippo

I cant make up my mind between these two Zippos'Hidden Dragon''Patriotic Version'What do you think?What would you get?OrIs there a different zippo you would get?below are images from zippo case museum (offical websight)update i go the Patriotic version and i love it. added some pics

Topic by i make shooting things 11 years ago  |  last reply 8 years ago


Decided to Come back to take a look...

So guys, i decided to come back in here, just wanted to see if there was anything new going on? So, What is new?

Topic by Steamdnt 9 years ago  |  last reply 9 years ago


I was studying calculus today and decided...

Today i was studying calculus and decided i should study stuff i might actually need. Any ideas for how i can take my knowledge from school last year and remember it for this upcoming year?

Topic by Yerboogieman 9 years ago  |  last reply 9 years ago


Help us decide upcoming contests!

EDIT THIS FORM IS NOW CLOSED - THANK YOU TO ALL WHO PARTICIPATED!For contest suggestion, check out this thread:https://www.instructables.com/topics/What-kinds-of-contests-do-YOU-want-to-see-on-Instr/ We can’t wait to see what you make in 2018!@audreyObscuraInstructables Community Manager

Topic by audreyobscura 1 year ago  |  last reply 9 months ago


Can't decide... EDIT: Choice made!

I'm buying a new multi-tool. I have been using a Leatherman Juice for almost seven years, and it's starting to show its miles.  I know I could replace it under Leatherman's guarantee, but it's one I won from Instructables, and it's engraved. So, I'm trying to choose a replacement, which will be part of my EDC. At the moment, I'm havering between the Gerber Crucial and the Leatherman Sidekick. I like the Crucial. My youngest has one for scouting, and I've used it a few times. It's quite comfortable in the hand, and feels strong. However, it lacks tools I have used quite a bit in the past. It's proving a hard choice, online reviews vary between useless and contradictory, so I thought I'd see what you folks think. What are you carrying as DIY EDC, what do you wish you were carrying? CHOICE MADE! I have a Leatherman Wave on it's way in the post!

Topic by Kiteman 5 years ago  |  last reply 4 years ago


How to decide the motor rating and torque required ?

I want to make manual  wheelchair to be electrically driven. For that I have assumed wheelchair weight to be=20 kg Patient's weight to be=100kg ( max ) Motor  with battery = 30 kg (approx) Thus total weight to be = 150 kg (approx) what kind of DC motor along with its rating should be used ?

Question by dhanudi 1 year ago  |  last reply 1 year ago


deciding between 2 crybaby wah mods?

I hav a an old gcb-95 crybaby that i have already modded with a variable Q control, but the Q control doesnt make much of a noticable difference. im trying to decide between putting in a 6 way rotary switch to select between different sweep caps(like in the 535q) or to put in a 5k pot in series with the ground lead of the wah pot to adjust the range of the wah(just like jerry cantrell wah) whats the difference in sound between the 2 mods? is changing the sweep cap changing only the range, only the Q, or both? basically, do these both change the sound in the same way, or dfferent? if theyre different, im just gonna put both in.

Question by bobbyderf123 7 years ago


YOU decide the mod for my new speakers!

Hey I just got the speakers I am going to use for college next year and I was wondering what I should do to them... This is where you come in (if anyone responds or even looks at this). I am interested in modifying my new Logitech X-140 speakers, but I don't quite know what to do with them just yet. I have thought about either spray painting them crimson and cream, or hiding them in some books, like I did with my speaker book (portable), except I would keep the speakers intact so I could remove them if I felt like it. If you have any ideas on what I should do with them, post the ideas here, and if I like your idea (or I think I am capable of completing your idea) I will try to complete it. Your idea doesn't have to be well thought out, just a general idea will inspire me. This will also become an instructable (whichever path I choose). In the instructable, I will also include my source of inspiration.

Topic by Dr.Paj 9 years ago  |  last reply 9 years ago


K'NEX Guns or K'NEX Ball Machines? You Decide.

Which is more popular on Instructables.com: K'NEX guns, or K'NEX ball machines? Please post your opinions below. (Note: Credit for the ball machine picture goes to sandroknexmaster, and partial credit goes to dr. richtofen for the gun)

Topic by The Knex Inventor 2 years ago  |  last reply 2 years ago


need help decideing what electrical componant to use

Im trying to do build a progect and it involves using a laser security system to power a video camera problem is i want the video camera to start recording as soon as the laser is broken and to keep recording for like 10 or 20 minutes or so what electronic should i use to acomplish any help would be appreciated?

Question by Dreidel 7 years ago  |  last reply 7 years ago


What criteria does insructables use to decide if a project will be featured?

Is it based on productivity, usefullness, novelty, or just random coolness?

Question by MechEngineerMike 10 years ago  |  last reply 10 years ago


Crazy fun, or a slow cruel death - I can't decide...

This is just crazy - two Ocean Engineering students created a "hamster-powered submarine" from "materials derived from common household objects" that connected a hamster wheel in a sealed, air-supplied vessel to a propeller, allowing hamsters to take themselves on aquatic jaunts.  (via BoingBoing Twitter feed) Seriously, it's a submarine powered by a hamster in its wheel.  I can't decide if the hamster is having loads of fun, or is being driven mad with terror. It doesn't seem very fast, though... They documented the build on their own website, but if you would like to see an instructable on it, go to the video and leave a comment to say so...  

Topic by Kiteman 7 years ago  |  last reply 7 years ago


How long does it take for Instructables staff to decide if an Instructable will be featured? Answered

How long does it take for Instructables staff to decide if an Instructable will be featured?

Question by BLUEBLOBS2 7 years ago  |  last reply 7 years ago



is what i have decided for my computer build everything compatible? Answered

I decided to buy the core parts my custom cheap computer, that i plan to upgrade with better parts. but if i want to save money in the long run and not have to buy totally new parts for a building a decent computer. will these parts i choose will work together? the top parts are the bare essentials for my build, excluding the parts i already have in my old tower computer (case, 300W PSU, monitor, and keyboard, mouse, WiFi adapter {maybe read bellow}) MOBO:---ASRockZ77 Extreme4 LGA 1155 Intel Z77 ATX Intel Mobo----------------------$140 CPU: -----Pentium G620 (lga-1155)-------------------------------------------------------------------$64 RAM:-----G.SKILL Ripjaws X-Series 8GB DDR3 RAM Model F3-12800CL9D-4GBXL---$40 i plan to get these parts after i get the initial build working. if i am unhappy with the above specs i will upgrade. my parents want me to build a cheap $250 computer first to see if i am up to the challenge.  so i want everything i listed to work well together. so far i have worked out everything except the power supply cables (if it will power everything listed and crossfire/SLI for future improvement.) PSU:------OCZ ModXStream Pro 600W Modular High Performance Power Supply---$50 after rebates CPU:------Intel i5 3570K-------------------------------------------------------------------------------------$220 GPU:------either a gtx 660, or a Radeon 7870.-----------------------------------------------------$230.00 ish CASE:----Cooler Master Computer RC 430 KWN1/dp/B003O8J11E---------------------------$46 HDD:------unsure. whetever i get my hands on in the future. it will be 7200 RPM or better, maybe a cheap ssd as for the GPU any recommendations? i want something within $250 and will play games on high settings with no problem, and dual monitor setup. i think this GTX 660 it seems to be slightly better than the radeon 7870, and cheaper. i might go with this. is it a good idea to get a CPU that has the 'K' at the end, i know this means it is overclockable bacause it is unlocked. but it it worth it to pay the extra 20 for a faster stock clock speed, and HD 4000 graphics? compared to the i5 3550? p.s. i will delete parts of my question(s) that have successfully been answered by you and the community.  thank you everyone who helped me out with this. i have to give credit to:  mpilchfamily, Willard2.0,  and bwrussell have been very helpful. i cant wait until i start building!

Question by -max- 6 years ago  |  last reply 6 years ago


Alesis Nanoverb: Effects Unit or new Project Box? You decide

Hi Everyone,Well I posted this as an Instructable, but someone pointed me to the forum, so here I am. My Alesis Nanoverb hasn't worked in a while. Initially it just made wall warts stop working. But at some point, it stopped powering on. Since I have minimum skills with electronics and have only recently started to solder together my own altoids tin light w/LEDs, I thought I should ask for help from the sages in the forum.I posted the instructable at: https://www.instructables.com/id/ERP4FYR1NAEWUSLQ0W/Any advice you could give would be helpful. For example, where do I test it with the voltsmeter to see if it's got continuity? Which selection on the voltsmeter do I use for continuity? Etc.I've provided pictures of the guts and a picture of me testing the Nanoverb.THANKS

Topic by Jumpin 12 years ago


How to decide that what controller must be used in building up automonous robots?

We are working on building up an autonomous robot which can collect the solid waste within confined size and automatically detect the waste and pick up the waste and put the bin attached to it.

Question by rkumar reddy 5 years ago  |  last reply 5 years ago


UPDATED: I am having difficulties deciding which book to pick from AMAZON

I will get a list of the ones I am considering at the moment soon, and would like suggestions from you all too. Ok, here is my list; I want to pick one of these, OR if someone has a better suggestion....let me hear it:   Backyard Ballistics: Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices by William Gurstelle Whoosh Boom Splat: The Garage Warrior's Guide to Building Projectile Shooters by William Gurstelle Adventures from the Technology Underground: Catapults, Pulsejets, Rail Guns, Flamethrowers, Tesla Coils, Air Cannons, and the Garage Warriors Who Love Them by William Gurstelle MAKE: Electronics: Learning Through Discovery [Paperback] Charles Platt Getting Started with Arduino (Make: Projects) by Massimo Banzi Practical Arduino: Cool Projects for Open Source Hardware (Technology in Action) by Jonathan Oxer 30 Arduino Projects for the Evil Genius [Paperback] Simon Monk 51 High-Tech Practical Jokes for the Evil Genius by Brad Graham Mechatronics for the Evil Genius: 25 Build-it-Yourself Projects by Newton Braga 123 Robotics Experiments for the Evil Genius (TAB Robotics) by Myke Predko 22 Radio and Receiver Projects for the Evil Genius by Thomas Petruzzellis The Geeks' Guide to World Domination: Be Afraid, Beautiful People [Paperback] Garth Sundem Illustrated Guide to Home Chemistry Experiments: All Lab, No Lecture (DIY Science) by Robert Bruce Thompson Chemical Magic by Leonard A. Ford The Best of Make (Make 75 Projects from the pages of MAKE) by Mark Frauenfelder Theo Gray's Mad Science: Experiments You Can Do At Home - But Probably Shouldn't by Theodore Gray BTW:  I have the one pictured, and actually am not pleased with this particular one.  Which is why I am being cautious....

Topic by Goodhart 8 years ago  |  last reply 8 years ago


how elemtal compositon is find in a compound or matter?

I want to know how the elemental composition is decided ie how it is decided that H2so4 is made up of hydrogen ,sulphur and oxygen and before spectroscopy how it is decided in old day when no scientific instument are available

Question by mihir.sahu.355 3 years ago  |  last reply 3 years ago


How many PDF downloads are allowed each month if I decide to 'Go Pro' and sign-up?

Hi there, I have one small query, I am considering signing-up to one of  the 'Go Pro' Subscription plans, maybe for just a month or two to start with, my question here is how many downloads will I be able to make during this period, i.e. is there a limit/cap on downloads should I decide to subscribe? Thank you for any help in answering my question...

Question by DELETED_tgray18 3 years ago  |  last reply 3 years ago


On the 555 Timer Schematics I found I need help deciding what transistors to use to build it? Answered

I am a beginner in electronic schematic reading and I want to build a full sized 555 timer with all the parts that make up the tiny little IC. But I am having trouble determining what transistors to use. This schematic has the details on what values of resistors to use but not what transistors they are: http://www.electronics.dit.ie/staff/mtully/555%20folder/555equiv.gif Which ones should I use? same thing with this one: http://eliot84.files.wordpress.com/2009/09/ne555-schematic.png This one seems pretty promising since it does list what transistors to use: http://ssihla.files.wordpress.com/2011/02/555.png and I don't know this one is hard for me to understand: http://analogguru.an.ohost.de/193/schematics/Dod_555.gif Which one do you think is best or what transistors could I use in either of the first 2? Is the last one actually a 555 timer or is it something else?

Question by powerman666 6 years ago  |  last reply 6 years ago



how can I make this H shifter?

I seen this instructable and I found it cool so I decided to make one. I decided, based in other instructables using a cheap pc USB game controller. I have seen how to make the steering wheel, and I decided to make the pedals with linear potenciometers, such as the parking brake, but I don't know how to make the H shifter. Can somebody help me?

Question by tgferreira184 6 years ago  |  last reply 6 years ago


a website that will let upload a photo and let you decide how many "pieces" to cut it into and save as a pdf to print,

I found a website a few years ago that would allow you to upload a single photo and let you decide how many "pieces" to cut it into and save that as a pdf for you to print, i want to use a photo of my wife and I to "cut" into about 12 8X10's and frame each one to make up the original photo 1photo cut into 12 pieces to make up a large overall photo of the original any help with this?

Question by mrbaker060705 9 years ago  |  last reply 9 years ago


bullhorn, riser, drop, or mustache bars?

cant decide what bars to put on my fixed gear, bullhorn, riser, drop, or mustache i just can't decide, any ideas?

Topic by struckbyanarrow 8 years ago  |  last reply 8 years ago


Fun with a Y connector

So I got one of my friends to come over, and we played with knex. He decided to have fun with a Y connector and pretended it was a nose and lip piercing. I thought it was funny, and took pictures, then I decided to post it.

Topic by DJ Radio 9 years ago  |  last reply 9 years ago


Voting for a game

Berkin has decided to make a game or a movie.In the chat,we did a discussion.He decided I post a forum so that more can vote.Should it be game or movie?Vote in the comments.Votes:Game:2Movie:2Leading:Equal

Topic by Derin 10 years ago  |  last reply 10 years ago


What should my next instructible be?

I am trying to decide between a drill-powered go-kart and a sampler based off of casette tapes.

Question by Mr Cheeseo 8 years ago  |  last reply 8 years ago


Pro Membership costs

I wanted to get the Pro membership....in deciding which was the most cost effective I ran into a problem. #1 is more expensive #2 is the cheapest of the three #3 is said to be the best but in fact is the middle of the two...please explain this so I can decide what to purchase.

Topic by RickG54 7 years ago  |  last reply 2 years ago


Are games for the XP and Vista Operating Systems compatible with the Windows 7 operating system? Answered

I am trying to decide what operating system(s) to put on my new gaming computer I'm working on.

Question by bowmaster 9 years ago  |  last reply 9 years ago



while making a tent like shelter systems how to decide the position joints in space where the two poles will intersect?

I have several other questions in mind... 1. since the PVC conduits are bent during the process of building tents, some bending stresses will be induced..how do we ensure that the structure won't fail? 2. Can someone suggest some modification in shelter systems dome design to make it more stable but not adding much complexity and not adding much assembly time? 3.Can someone give a construction plan of a dome similar to shelter systems, different pipe sizes and position of joints??

Question by kushal22 4 years ago  |  last reply 4 years ago


Putting RGB LEDs in paper lanterns for live music performance visuals, need help deciding what route to take?

So I have some paper lanterns, 8" in diameter, and I ordered some RGB LEDs to put in them, gonna wire it to an arduino and then to a computer so I can control them from offstage. I'm realizing that I probably need more light power (lumens?) than 3-5 RGB LEDs in each lantern.. :( So should I get a strip of LEDs or something? What's gonna give me some fire power for not too much dough? Also any other suggestions are more than welcome.

Question by prismspecs 6 years ago  |  last reply 6 years ago


air brush

What do you know about air brushes? I'm trying to decide which to buy.

Topic by mrtools 12 years ago  |  last reply 12 years ago


Instructables is on Tumblr!

Did you know Instructables is on Tumblr?  We've been on it for quite some time, but we haven't been very active in the last couple years (?).  We'll, we've decided to get things up and running again.   We've decided to expand beyond the normal sharing of projects and have decided to show you, not only that, but also what's going on around the office.  Curious what everyones work space looks like?  We're planning on bringing it to you! Come on over, check it out and let us know what you think!  What do you want to see?

Topic by Penolopy Bulnick 5 years ago  |  last reply 5 years ago


Help deciding what is better for a project I am doing with a 1900 LEDs. 1 big circuit or lots of smaller ones?

Hi folks, Long time reader and first time poster. I have 1900 LEDs and 1900 CR2032 3 V batteries left after some recent throwie / stickie / fun but I am now thinking about doing something a little more with them. Thinking of doing some art installations with LEDs as a feature. Anyone know of the best way to wire up a simple circuit for these 1900 LEDS. Wanting them to last about 3 - 4 days. I know a throwie will last about 4 days, sometimes more with these batteries and LEDs. Is it a simple case of having to solder 1900 circuits? or go for something like 190 circuits with 10 LEDs and a battery pack of 10 3v batteries. From my understanding that will blow the LEDs if the V differential is greater than about 8Vs. This should be ok when setting the LEDs in series though? 10 X 3v batteries giving 30Vs 30v - 28.3v = 1.7v (where the 28.3 is made up of Yellow X 2, Green X3, White X 2, Blue X 3)0.2 amps needed, should be supplied by the 10 batteries easily and should last over 4 days.Baring this in mind is it worth my while picking up some resistors for the circuits? Last did serious electronics and physics about 11 years ago but I guess im bright enough and have the basics.?I have 200 Red needing about 1.7 volts500 Yellow needing about 2.1 volts500 Green needing about 2.2 volts500 White needing about 3.5 volts ??200 Blue needing about 3.5 voltsI would like all the LEDs to turn off and on together preferably when it gets darker to maximise the effect of the lighting. Going to use something like a LDR for that so I would prefer 1 larger circuit but I guess multiple circuits is also possible. Any help, comments, corrections and belittling gladly welcomed. Thanks very much, Dr Lego

Question by DrLego 9 years ago  |  last reply 3 years ago


rc dual rotor helicopter (like the chinook)

I was planning on a dicopter, my own version of a chinook style dual rotor rc helicopter. Decided to try working on one. Any ideas on how it may work ? all comments are welcome. I decided to use a tricopter like yaw mechanism.

Topic by robobot3112 3 years ago  |  last reply 3 years ago


cmoy feedback "synth"

This isn't a question, just an interesting discovery that I didn't think warranted an entire instructable Decided to convert my old cmoy amp into a portable speaker, so I found some little drivers and soldered them to the pins of the output jack, tested it, worked fine, then I got bored and decided to connect the input jack to the output jack with an aux cable:

Topic by erenjay 5 years ago  |  last reply 5 years ago


Battle of the Laptop Hardrives!

So i need an ata 5 or higher harddrive, but i can't decide what to get!This:http://www.newegg.com/Product/Product.aspx?Item=N82E16822148073Or this:http://www.newegg.com/Product/Product.aspx?Item=N82E16822136130I can't really decide, i'm leaning towards the 160 gigTell me what you think! (or you can show me a better one for under $70?)

Topic by Sandisk1duo 10 years ago  |  last reply 10 years ago


Will there be a Instructables app for Ubuntu?

I would like to know so I can get it if they decide to develop one

Question by nerd7473 4 years ago  |  last reply 4 years ago


my "pet" spider

I saw the forum about plasmana's huge spider he found. so i have decided to post about my "pet" spider. he actually isnt my pet note the quotation marks he has just decided to live my bucket. i think he is a wolf spider but if I'm wrong please tell me.

Topic by Sun Gear 10 years ago  |  last reply 10 years ago


I got bored.

So, I decided to make an instructable for Oompa-Loompa's crossbow.

Topic by razzlekunai 10 years ago  |  last reply 10 years ago


Birdwatchers' group

In light of recent avatar-fashions, I decided to start a new group.Feel free to join, but beware that membership is moderated.

Topic by Kiteman 9 years ago  |  last reply 9 years ago


i am a 7th grader who has to do a science project. Can you please help me decide on a good one ?

It has to be totally done by me and NOT my parents.

Question by Ldmgetz 9 years ago  |  last reply 2 years ago


My Knex Safe

having a little break from guns and decided to make a knex safe comment rate and subscribe enjoy =)

Topic by knex mad 9 years ago  |  last reply 8 years ago


Should I make an Instructable for this?

Haha, I was already going to make it. I'm just super excited about it so I wanted to share a sneak peek with y'all. I made it out of PVC and metallic paint, mostly, then the usual Steampunk bits and pieces. Then I decided it needed to be lit up with LEDs for special effect! Then I decided it needed a laser sight! Win.

Topic by V-Man737 9 years ago  |  last reply 9 years ago


Caption competition...

No prizes, just for fun, what would your caption be for this image from the BBC Science website?Edit:Current leader:"Lindt decided that their gold easter bunny had become dated, decide to combine easter and Halloween instead"....from a very disturbed mind.EDITNew leader:"Trinny and Susannah harass Akhenaten on their new series ' What Not To Worship'."(I think there's more than a wire loose in that brain)

Topic by Kiteman 11 years ago  |  last reply 10 years ago